NASA's space science programs and the mission to plant Earth [microform] : hearing before the Subcommittee on Science, Technology, and Space of the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Second Congress, first session, April 24, 1991.
United States.Congress.Senate.Committee on Commerce, Science, and Transportation.Subcommittee on Science, Technology, and Space.
Washington : U.S. G.P.O. : For sale by the U.S. G.P.O., Supt. of Docs., Congressional Sales Office,
1991.
Microfiche.
United States. National Aeronautics and Space Administration
Space sciences
Earth sciences